Composite lubricating-oil.



mean sans Parana onion.

WALTER T. RICE, OF CHICAGO, ILLINOEEL COMPOSITE LUBRICATING-OIL.

No Drawing.

To all whom it may concern:

Be it known that I, WALTER T. RICE, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Composite Lubricating-Oils, of which the following is a specification.

This invention relates to a composite lubricating oil which is particularly suitable for use on the bearings and in the cylinders of internal combustion engines.

To those familiar with mineral oils, fatty oils and liquid waxes it is well known that the mineral oils are miscible with all the fatty oils, except castor oil, and liquid waxes; and it is also well known that castor oil may be made miscible to a certain extent with mineral oils by first mixing it with tallow, it being a fatty oil, and to some extent with corn oil.

The object of this invention is to obtain a composite oil having a very high percentage of castor oil and a marked percentage of mineral oil (paraffin oil) as ingredients thereof; without the use of either tallow or corn oil in said composite oil.

A further object of the invention is to obtain a composite lubricating oil which is fluid in character, and of an extremely high fire test. And a further object is to obtain a lubricating oil of the character described which is not of a highly inflammable nature.

In making this composite oil I take sixty (60) parts, (in quantity), of vegetable castor oil, as sold on the market; fifteen (15) parts of commercial rape seed oil, (in quantity); and twenty five (25) parts, (in quan- Specification of Letters Patent.

Patented Dec. 141, I915.

Application filed August 16, 1915. Serial No. 45,834.

tity) of commercial paraflin oil and place the same in a suitable vat or receptacle. The temperature of said oils in said vat or receptacle, during the summer months is climatic,

and during the remaining months of the year the temperature is anywhere between forty degrees above zero, Fahrenheit, and ninety. The above named ingredients, after being placed in said vat or receptacle are thoroughly agitated, until no streaks or other apparent separation thereof can be observed. I have used as a means of agitation an air blast, but I prefer and now use a paddle or fan wheel which is immersed in said ingredients and revolved rapidly. When said ingredients have become thoroughly mixed a uniform color is observable thereto; said color being considerably darker than the color of the castor oil therein; and upon the cessation of the agitation it quickly becomes a clear amber color.

The composite lubricating oil which I have discovered or invented, and which is hereinabove set forth is not suitable for use as an illuminating or heatingoil, because of the high temperature it is capable of withstanding.

I claim The herein described composition of matter to be used for lubricating purposes, consisting of castor oil, rape seed oil, and paraffin oil, in the approximate proportions of sixty (60), fifteen (15), and twenty-five (25) per cent, as specified.

WALTER T. RICE.

In the presence of E. A. WINCHELL, CHARLES TURNER BROWN. 

